Girls’ Generation are back with their highly anticipated fourth mini-album Mr. Mr.! Girls’ Generation worked with The Underdogs production team for the title song, a powerful urban pop dance number that shows the girls at the top of their game. “Mr.Mr.” was also the number one album on iTunes for 15 countries around the world: Taiwan, Singapore, Philippines, Vietnam, Thailand, Malaysia, Mexico, Peru, Hong Kong, Indonesia,Japan and more. It ranked first for Canada iTunes's pop albums and came in second for the top US iTunes pop albums, placing fifth most popular US album overall.